one journalist had earlier recreated the journey of thomas to india.
i was at the st thomas mount recently with a visitor to the city,
thomas seems to have found ways to communicate with the people of south india,
it would have been just after the time of the sangam and the time of thiruvalluvar when thomas reached chennai.
the pallavas were not in the horizon,an ally of the cholas might have been in power around chennai.